Cream-separator bowl.



No. 354.519. PATBNTBD MAY 21. 1907. RaMcMULLEN.

CREAM SBPAR'ATQR BOWL. APPLICATION FILED SEPT. 17,-1904.

. i 2 sanne-SHEET 2. Iig; 2 .Waff 5.

f -UNITED STATES PATENT 'oEEIoE FRANK o. MQMULLEN, oF MINNEAPOLIS, MINNESOTA', ASSIGNoE To CLEMENT w.-HoovEN, oF ANDERSON, INDIANA.

x QREAm-sz-:PARATQR Bowl..

specification o'f Letters Patent.

ratemed may 2 1, 1907.

application led'septembr 17,1904. seriai'ia. 224.780.

Aa citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certainA new and useful Im rovements in' CreamfIO Separator Bowls; an I do hereby declare the fol owing to be a full, clear, and exact descnption' of the invention, such as 4will enable vothers skilled in the art towhich it appertains to make and use the same.

r My present ixivention'relates 4to cream separators, and has for its object .to improve the internal mechanism of the. separating bowl in th several particulars hereinafter noted.

and combinations of devices hereinafter described and defined in the claims.

.. In the accompanying drawings which illustrate my invention, like characters indicate like parts throughout the several views.

Figur e-l shows the separator bowl in oentrai vertical section, and shows the internal mechanismA of the bowlpartly in section and partly in full sideelevation, some parts being roken away. Fig. 2 is a detail in elevation,

showing one section ofthe divided bowlv liner Fig. 3 is an elevation of the liner section shown in Fig. 2 viewed at ninety degrees from the position in which it is viewed in Fig. 2 ,'and Fig. 4 is a plan view of the complete Iiner, showing the two/sections thereofplaced together.

.f The numeral 1 indicates'the bowl which, as is usual, isrigidl lsecured. at its lower end 'tg the upperl end o -a driving spindle-2, and is provided at itsA upper end with an approximately conical cover 3, having an out-turned flange 4, and a. depending flange 5. The Bange 4 overlies the upper edge of the bowl l and between the same, and the said bowl, is

ar gasket or annular ,packing 6.

intergosed The ange 5 depends within the bowl, and is perforated at several points, to afford seats,

skim milk outlet tubes 7. The cover 3 at its upper end, Yis formed with a sleeve passage 8..

In the top of thev cover 3, eccentric to the passage 8, is a cream outlet passage Qwhich,

as shown, has 'interposed in its upper extremity, a small bushing 10, which aords a're'- strlipted outletlrm'thlcram. f h

xteningt ouv tepass e8o te cover 3, and deptending axiflly -entirely through the bowl 1, is a milk supply tube 11. At its extreme lower end, .this tube I1 is pro- .vided with a threaded trunnion 12 ,which fits rality of relatively small supplemental discharge orifices '14,which 'oriiices' 14 open therethrough at various points circumferentially and longitudinally thereof. The milk supiplied through the tube 11 passes out from sal tube into said bowl chiefly vthroughthe the supplemental discharge orifice 14. i

The bowl liner, which is ofnovel .construction, and constitutes the principalfeature of my invention, is constructed 'in sections, that is, is divided longitudinally, preferably into two parts, and is made up of semi-annular concavo-convexdisks 15, and radial, longitudinally extended, partition 4lates 16. The upper ends of the partition p ates 16 are out- -wardly beveled to `fit the interior ofthe cover 3, While the lower ends of said plates are in- Wardly beveled to form an uninterru ted annular chamber at the bottom of t e liner. Flat, semi-circular, vdisk sections 17 are rigidlysecuredto the extreme lower ends of the partition plates 16, and to the extreme lower edges of the lowerrnost disks 15. l

` The partition plates 16 extend radially from the supply tube 11 to Ithe cylindricalr inner surface of the bowl, 'but thedisks l5, at their outer edges, terminate slightly inward of the inner surfacel of said bowl, so as to leave an annular passage for the upward flowV of the skimmed milk. At their'inner edges,` said disks 15 terminate considerably short of the suppl tube 11, so as to leave a'free passage for t e upward flow of thecream immediately around the exterior of said tube. The at bottomed disk formed by the two disk sections 17, is formed with an axial erforation 17, which is only large enoug to freely pass the threaded trunnion 12 of the sleeve ,11. The disk sections 17 are further The invention consist of the nov l devices' imam discharge oceslg but impart through S e ,f

preferably provided with de ending bosses 18 which t into seats forme At its extreme u `er end, the su plytubel mi.' i

1 1 is formed with a ead 11a Whic engages thc'kupper end of the cover 3 and presses the .same tightly down onto the packing 6 under the action of the trunnion 12.

It Will be noted'that each half or section of thesplit or divided ,liner has three partition plates v16, and thattwo of these he in. the same plane, so that when the two sections of the linerv are laced together, the diametric ally alined p ates of the one sectionress against and closely engage, latwise, wit i the diametrically ahned plates yof the other section. Of course, a greater numberpf 1ntervmediate partition plates might be employed,

and the hner itself may be made inmore than two sections. n j

It will also be understood that' other modifications may be made within thescope of my invention as herein set forth and\claimed;-

Operation The milk is introduced into the bowl through the supply tube 11;, and will be delivered chiefly at the bottomof the bowl, through the discharge orices 13. U

4der the action of centrifugal force, the heavier particles, usually designated as the skimmed milk, will be thrown outward. against'the -walls of the bowl, just outward ofthe outer edges of the disks 15, and finds an outlet through the discharge tubes '2'. The,

skimmed milk thus discharged may be caught by vthe usual means. The cream being relatively light, Wiil be forced to the cen-- ter of the bowl, and passing upward betweenv the tube 11 and the inner edges of the disks v15, is discharged through the passage Q of the cover 3, andthrough the bushing V10. The cream thus discharged may be caught by the usual. means.

*the saine to rise in several diffe tinct columns.

By means already described, the liner is caused to rotate with the bowl, and the vertical partition plates 36 insure the ro tation oi the milk and cream with the bowl, andes-use Hence .it note that the said partition i inner edges, project inward be edges of the disks 15, and into close contact with the supply tube ll,yand,'at their outer edves, project beyond the outer edges of said iss and into Contact with the walls of the bowl, thus cutting ofi lateral communication between the several columns or vertical passages fornied within the bowl by the sald par-v tition plates,

The divided or liner 1s formed or made up of several segmental sections,'1s of the greatest importance, be-

split feature, whereby the cause this permits the said arts to be readily cleaned. The -cleaning of devices offv this character, wherein a plurality of disks arel employed., is, as is well known, of the highest importance, and one hitherto not easily accomplished. With a plurality of disks loosely* .put together, the cleaning thereof, and putlting the parts again together, has been found a very slow and unsatisfactory job. With the disks formed complete, and rigidly con- 0 .nected,the cleanin of the'device Wouldn-be extremely difiicnlt. However, with the liner split longitudinally, or formed in. segmentaiv sections, access can be easilyhad, with a brush or other device, both to the Interior and exterior portions thereof. The factsabove stated, l have demonstratedby actual usage of the device. l

Vilhat I `claim and desire tosecure by Letters atent of the United' Statesis as follows: A cream separator including a revoiuble bowl having a cover formed with an outlet' passage for the skimmed'milk and cream, a inilk Asupply tube extending through said cover and axially through said bowl and han. ing at its lower end a milk discharge orifice, and a bowl liner split longitudinally and sections and partition plates and flat supple- .made up of semi-annular frusto conical disk,

mental disk 'sections rigidly united, said conn ical disksections terminating 'short of the walls ofthe bowl and` of said' supplytube', said partition Vplates extending from said supply tube through the spaces between said 9 conical disk sections, and said supplemental 

